====== pi-hole ======

[[https://docs.pi-hole.net/main/prerequesites/|Install]].  Configure ''iptables'' as instructed, ignore ''FirewallD''.

Install from ''su -'', otherwise ''usermod'' is not in your path (can't create pi-hole user).

August 2019 choices: ''OpenDNS'' (about 40% faster than Google, but similar to UNO (193.150.34.1, 91.230.181.1)), IP4+IP6, show everything.